SIMULATION OF ELEMENTS IN PERIODIC TABLE

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VERY INTERESTING SIMULATION... EXPLORE!!!!!!!

SYNGENTA PERIODIC TABLE

TRANSITION ELEMENTS

1. Transition elements can form coloured compounds

2.  Transition elements have varying oxidation number

• Iron has two common oxidation states (+2 and +3) in, for example, Fe²⁺and Fe³⁺. It also has a less common +6 oxidation state in the ferrate(VI) ion, FeO₄^2-.
• Manganese has a very wide range of oxidation states in its compounds. For example:

+2	in Mn2+
+3	in Mn2O3
+4	in MnO2
+6	in MnO42-
+7	in MnO4-

3.  Transition elements can form complex ions

• A complex ion has a metal ion at its centre with a number of other molecules or ions surrounding it. 
• Some examples of complex ions formed by transition metals
  

  
  

  [Fe(H₂O)₆]²⁺,   [Co(NH₃)₆]²⁺,   [Cr(OH)₆]^3- ,  [CuCl₄]^2-

4.  Transition elements can act as catalysts

• Iron in the Haber Process
  The Haber Process combines hydrogen and nitrogen to make ammonia using an iron catalyst.
                            

• Vanadium(V) oxide in the Contact Process
  At the heart of the Contact Process is a reaction which converts sulphur dioxide into sulphur trioxide. Sulphur dioxide gas is passed together with air (as a source of oxygen) over a solid vanadium(V) oxide catalyst.
  
                 

• Nickel in the hydrogenation of C=C bonds
  This reaction is at the heart of the manufacture of margarine from vegetable oils.
  However, the simplest example is the reaction between ethene and hydrogen in the presence of a nickel catalyst.
  
                          

REACTIVITY OF GROUP 1 ELEMENTS

HERE'S THE REACTIVITY OF GROUP 1 ELEMENTS OF LITHIUM, SODIUM AND POTASSIUM!!!!!! MAYBE THIS CAN HELP YOU TO ANSWER EXERCISE QUESTION ....

EXERCISE

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EXERCISE

QUIZZES AGAIN...

HI ALL... YEAY.. LET'S REVISE GROUP 18 ELEMENTS....

try to work out this quiz... very easy!!!!!

Solving the puzzle of the periodic table - Eric Rosado

How did the periodic table of elements revolutionize our understanding of the world? What scientists contributed to the table we have today? Eric Rosado discusses the key people and discoveries that have molded our understanding of chemistry today.

PUZZLE OF PERIODIC TABLE

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THINK!!!

DIG DEEPER!!!!

TRANSITION ELEMENTS

HI ALL...

WHAT DO YOU KNOW ABOUT TRANSITION ELEMENTS????

TRANSITION ELEMENTS ARE WIDELY USED IN DIFFERENT FIELDS IN OUR DAILY LIVES. THESE INCLUDE SCANDIUM, TUNGSTEN, IRON, NICKEL, COPPER AND CADMIUM. 

WHERE IS THE POSITION OF TRANSITION ELEMENTS IN THE PERIODIC TABLE????

TRANSITION ELEMENTS EXHIBITS THREE SPECIAL CHARACTERISTICS :

• TRANSITION ELEMENTS SHOW DIFFERENT OXIDATION NUMBERS IN THEIR COMPOUNDS.
• TRANSITION ELEMENTS FORM COLOURED IONS OR COMPOUNDS.
• TRANSITION ELEMENTS AND THEIR COMPOUNDS ARE USEFUL CATALYSTS.

PRECIOUS STONES EXIST NATURALLY IN DIFFERENT COLOURS. WOW, SO NICE!!!!!

LET'S DISCOVER MORE ON TRANSITION ELEMENTS